Communication satellite use__sent by a transmitting station to transmit signals over long distances A microwaves B polar waves C light D radio waves

Aball has an initial velocity of 3 m/s. if there is no friction, what is the highest it could roll?

There are two-speed cameras, one in an are where the speed limit is 30 km/h and another where the speed limit is 50 km/h. in which will there be a smaller time interval between the photographs? explain your answer.

Acoil suspended freely, points in some direction when no current is passed through it . can you tell what will happen when a current is passed though it?